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  <title>Returns the thread ID for the current connection</title>

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</div><hr /><div id="function.maxdb-thread-id" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">maxdb_thread_id</h1>
  <h1 class="refname">maxdb::thread_id</h1>
  <p class="verinfo">(PECL maxdb &gt;= 1.0)</p><p class="refpurpose"><span class="refname">maxdb_thread_id</span> -- <span class="refname">maxdb::thread_id</span> &mdash; <span class="dc-title">Returns the thread ID for the current connection</span></p>

 </div>

 <div class="refsect1 description" id="refsect1-function.maxdb-thread-id-description">
  <h3 class="title">说明</h3>
  <p class="para">过程化风格</p>
  <div class="methodsynopsis dc-description">
   <span class="type">int</span> <span class="methodname"><strong>maxdb_thread_id</strong></span>
    ( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$link</code></span>
   )</div>

  <p class="para rdfs-comment">面向对象风格</p>
  <div class="fieldsynopsis"><span class="type">int</span> <var class="varname">$maxdb-&gt;thread_id</var>;</div>

  <p class="para">
   The <span class="function"><strong>maxdb_thread_id()</strong></span> function returns the thread
   ID for the current connection which can then be killed using the
   <span class="function"><a href="function.maxdb-kill.html" class="function">maxdb_kill()</a></span> function. If the connection is lost
   and you reconnect with <span class="function"><a href="function.maxdb-ping.html" class="function">maxdb_ping()</a></span>, the thread ID
   will be other. Therefore you should get the thread ID only when you need it.
  </p>
  <blockquote class="note"><p><strong class="note">Note</strong>: 
   <p class="para">
    The thread ID is assigned on a connection-by-connection basis. Hence,
    if the connection is broken and then re-established a new thread ID
    will be assigned.
   </p>
  </p></blockquote>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-function.maxdb-thread-id-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   <span class="function"><strong>maxdb_thread_id()</strong></span> returns the Thread ID for the current connection.
  </p>
 </div>


 <div class="refsect1 examples" id="refsect1-function.maxdb-thread-id-examples">
  <h3 class="title">范例</h3>
  <div class="example" id="example-1321">
   <p><strong>Example #1 面向对象风格</strong></p>
   <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br />$maxdb&nbsp;</span><span style="color: #007700">=&nbsp;new&nbsp;</span><span style="color: #0000BB">maxdb</span><span style="color: #007700">(</span><span style="color: #DD0000">"localhost"</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"MONA"</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"RED"</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"DEMODB"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/*&nbsp;check&nbsp;connection&nbsp;*/<br /></span><span style="color: #007700">if&nbsp;(</span><span style="color: #0000BB">maxdb_connect_errno</span><span style="color: #007700">())&nbsp;{<br />&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Connect&nbsp;failed:&nbsp;%s\n"</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">maxdb_connect_error</span><span style="color: #007700">());<br />&nbsp;&nbsp;&nbsp;exit();<br />}<br /><br /></span><span style="color: #FF8000">/*&nbsp;determine&nbsp;our&nbsp;thread&nbsp;id&nbsp;*/<br /></span><span style="color: #0000BB">$thread_id&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">$maxdb</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">thread_id</span><span style="color: #007700">;<br /><br /></span><span style="color: #FF8000">/*&nbsp;Kill&nbsp;connection&nbsp;*/<br /></span><span style="color: #0000BB">$maxdb</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">kill</span><span style="color: #007700">(</span><span style="color: #0000BB">$thread_id</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/*&nbsp;This&nbsp;should&nbsp;produce&nbsp;an&nbsp;error&nbsp;*/<br /></span><span style="color: #007700">if&nbsp;(!</span><span style="color: #0000BB">$maxdb</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">query</span><span style="color: #007700">(</span><span style="color: #DD0000">"CREATE&nbsp;TABLE&nbsp;mycity&nbsp;LIKE&nbsp;hotel.city"</span><span style="color: #007700">))&nbsp;{<br />&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Error:&nbsp;%s\n"</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$maxdb</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">error</span><span style="color: #007700">);<br />&nbsp;&nbsp;&nbsp;exit;<br />}<br /><br /></span><span style="color: #FF8000">/*&nbsp;close&nbsp;connection&nbsp;*/<br /></span><span style="color: #0000BB">$maxdb</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">close</span><span style="color: #007700">();<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
   </div>

  </div>
  <div class="example" id="example-1322">
   <p><strong>Example #2 过程化风格</strong></p>
   <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br />$link&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">maxdb_connect</span><span style="color: #007700">(</span><span style="color: #DD0000">"localhost"</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"MONA"</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"RED"</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"DEMODB"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/*&nbsp;check&nbsp;connection&nbsp;*/<br /></span><span style="color: #007700">if&nbsp;(</span><span style="color: #0000BB">maxdb_connect_errno</span><span style="color: #007700">())&nbsp;{<br />&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Connect&nbsp;failed:&nbsp;%s\n"</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">maxdb_connect_error</span><span style="color: #007700">());<br />&nbsp;&nbsp;&nbsp;exit();<br />}<br /><br /></span><span style="color: #FF8000">/*&nbsp;determine&nbsp;our&nbsp;thread&nbsp;id&nbsp;*/<br /></span><span style="color: #0000BB">$thread_id&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">maxdb_thread_id</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/*&nbsp;Kill&nbsp;connection&nbsp;*/<br /></span><span style="color: #0000BB">maxdb_kill</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$thread_id</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/*&nbsp;This&nbsp;should&nbsp;produce&nbsp;an&nbsp;error&nbsp;*/<br /></span><span style="color: #007700">if&nbsp;(!</span><span style="color: #0000BB">maxdb_query</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"CREATE&nbsp;TABLE&nbsp;mycity&nbsp;LIKE&nbsp;hotel.city"</span><span style="color: #007700">))&nbsp;{<br />&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Error:&nbsp;%s\n"</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">maxdb_error</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">));<br />&nbsp;&nbsp;&nbsp;exit;<br />}<br /><br /></span><span style="color: #FF8000">/*&nbsp;close&nbsp;connection&nbsp;*/<br /></span><span style="color: #0000BB">maxdb_close</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
   </div>

  </div>
  <p class="para">以上例程的输出类似于：</p>
  <div class="example-contents screen">
<div class="cdata"><pre>
Warning: maxdb_query(): -10821 Session not connected &lt;...&gt;
Error: Session not connected
</pre></div>
  </div>
 </div>


 <div class="refsect1 seealso" id="refsect1-function.maxdb-thread-id-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><span class="function"><a href="function.maxdb-kill.html" class="function" rel="rdfs-seeAlso">maxdb_kill()</a> - Disconnects from a MaxDB server</span></li>
   </ul>
  </p>
 </div>


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